Hey guys.. need your advice. Had a nail removed and repaired, however I had noticed a very minute leak coming from the repaired puncture. Took it back to repair centre and they repatched from inside but air/bubbles still coming out of the rubber insert/patch from outside. They said nothing can be done but buy new and there is still plenty of tread. It's only a small leak but I will need to check daily (pain). Should I take my tyre to another specialist or is there something I can buy from a autoshop that I can inject into the hairline puncture. Cheers for your help